Measuring system

ABSTRACT

A measuring system according to the present invention comprises a biosensor  2,  a measuring device  1  being capable of assaying a specified component in a biological sample applied to the sensor  2  as dotted with high accuracy, and an optional device  22  which notifies a measuring procedure or a measurement result in the measuring device  1  by voice or the like by being combined with the measuring device  1.    
     According to the so-constructed measuring system, even a weak-sighted person or those unfamiliar with handling of the device can perform measurement accurately and recognize a measurement result. Further, even when plural users require a voice function, only the measuring device which manages measurement data has to be held by each person, and the optional device can be shared, thereby reducing user&#39;s economical burden. When a voice output part has a breakdown, only the optional device has to be repaired and exchanged, and the measuring device can be used continuously, thereby enhancing convenience for a user.

TECHNICAL FIELD

[0001] The present invention relates to a measuring system which comprises a biosensor measuring device suitable for a biosensor that can accurately, speedily, and easily assay a specific component in various biological samples and an optional device that can be combined with the measuring device and complementarily announces a measuring procedure and a measurement result in the measuring device by voice.

BACKGROUND ART

[0002] An example of a biosensor measuring device employing a biosensor will be illustrated in FIGS. 6 and 7. A measuring device 1 is provided with a sensor insertion slot 3 in which a biosensor 2 is inserted, an operation button 4 for performing various operations, and a display means 5 for displaying various kinds of information such as a measurement result and time. A storage part 7 of a battery 6 is provided on the reverse face, and is fixed in a state where the battery 6 is pushed to a contact point 9 by a back cover 8. Inside the measuring device 1, a measuring part comprising a converting means for converting an electrical resistance value of liquid to be examined (sample) obtained by the biosensor 2 to a characteristic value (such as a blood sugar level) of the liquid to be examined, a storage means of the characteristic value, and a calculating means for performing various arithmetical operations such as an average value calculation based on a value stored in the storage means or the characteristic value obtained by measurement, a control means of the display means 5, and the like are provided by being formed on a printed board (not shown).

[0003] The biosensor 2 is provided with a counter electrode 11 and a measuring electrode 12, leads 13 and 14 connected thereto, and further an insulating layer 15 on the surface of a substrate 10 as shown in FIG. 8, as well as a reactive layer (not shown) including enzyme and a mediator (electron acceptor) is formed so as to cover the counter electrode 11 and the measuring electrode 12. The surface of the substrate 10 is sequentially covered with a spacer 17 which forms a U-shaped notch part 16 at a section corresponding to the measuring electrode 12 and a cover 19 which forms an air vent 18 connected with the notch part 16 of the spacer 17, and the substrate 10, the spacer 17, and the cover 19 are fixed with one another, thereby constructing the biosensor 2. Numeral 20 denotes an attaching end to the measuring device 1 and numeral 20 a denotes a projection part provided for preventing an inverse insertion of the biosensor 2 to the measuring device 1. Therefore, in a state where the attaching end 20 of the biosensor 2 is attached to the measuring device 1, when liquid to be examined (sample) drops to the end of the biosensor 2, the liquid to be examined is led onto the counter electrode 11 and the measuring electrode 12 through the notch part 16 by capillarity, and the air on the counter electrode 11 and the measuring electrode 12 is discharged from the air vent 18.

[0004] After measurement, the characteristic value obtained by the converting means of the measuring device 1 is displayed on the display means 5.

[0005] The output of the measurement result is performed only by a display by the display means 5 in the biosensor measuring device 1 of the above-described construction. However, when a user is a weak-sighted person, for example, it is difficult to confirm the display.

[0006] A measuring device as shown in FIG. 9 is invented as a countermeasure for the problem. In FIG. 9, the same reference numerals as those shown in FIG. 6 denote the same components. A voice output part 21 is provided on the surface of the measuring device 1 in addition to the display means 5, and a voice output means for announcing a characteristic value or various kinds of information by voice is provided inside the measuring device 1, besides the measuring part (both of them not shown).

[0007] However, in the above-described construction, the measuring device becomes expensive because all the parts from measurement to voice output are built in the measuring device, and, when plural users require the voice output, for example, each person is required to have the expensive device. Further, when the voice output part has a breakdown, the whole device has to be repaired and exchanged, resulting in inconvenience for a user.

[0008] The present invention is made to solve the above-mentioned problems and has, for its object, to provide a measuring system which comprises a measuring device being capable of taking a substance to be measured, analyzing components of the substance to be measured, and displaying a measured value and an optional device having a voice output part, and can complementarily announce a measurement result and a measuring procedure in the measuring device by voice from the optional device to a user by combining the measuring device with the optional device.

DISCLOSURE OF THE INVENTION

[0009] According to claim 1 of the present invention, in a measuring system comprising a measuring device which takes a substance to be measured, analyzes a component of the substance to be measured, and displays its measurement result and an optional device which has a voice output means for generating a voice or the like by being combined with the measuring device, the optional device complementarily announces a measuring procedure or a measurement result in the measuring device by voice. Therefore, even a weak-sighted person or those unfamiliar with handling of the device can perform measurement accurately and be informed of a measurement result. Further, the measuring device and the optional device can be constructed to be integrated and separated, whereby it is possible to deal with weak-sighted people and the others respectively, and thus, even when plural users require a voice function, only the measuring device which manages measurement data has to be held by each person and the optional device can be shared, resulting in reduction of user's burden. Further, when a voice output part has a breakdown, only the optional device has to be repaired and exchanged, and the measuring device can be used continuously, thereby enhancing convenience for a user.

[0010] According to claim 2 of the present invention, in the measuring system as defined in claim 1, the measuring device has a means for establishing communication of information about measurement with the optional device. Therefore, it is possible to transfer data such as a measurement result from the measuring device to the optional device.

[0011] According to claim 3 of the present invention, in the measuring system as defined in claim 1, the optional device has a means for establishing communication of information about measurement with the measuring device. Therefore, the optional device can receive data such as a measurement result transferred from the measuring device.

[0012] According to claim 4 of the present invention, in the measuring system as defined in claim 1, an operating part for operating the voice output means is arranged on the side of the optional device. Therefore, when an operator holds the system, the operation is easily performed, thereby providing good operationality.

[0013] According to claim 5 of the present invention, in the measuring system as defined in claim 1, the optional device has a function for switching a language of a voice. Therefore, it is possible to cope with a wide range of languages according to a user.

[0014] According to claim 6 of the present invention, in the measuring system as defined in claim 1, an operating lever for switching a language of a voice is arranged so as to be covered up with an exterior case of the optional device. Therefore, it can be prevented that a user accidentally switches a voice language.

[0015] According to claim 7 of the present invention, in the measuring system as defined in claim 1, a slope with a tapered shape is provided in the neighborhood of an opening for the measuring device to be inserted, which is provided in the optional device, in the direction where the measuring device is inserted. Therefore, the slope provided in the optional device serves as a guide, thereby enabling a reliable integration of the measuring device and the optional device.

[0016] According to claim 8 of the present invention, in the measuring system as defined in claim 1, the measuring device and the optional device have mechanisms for being engaged with each other when being combined. Therefore, it is possible to realize a simple integration and a strong fixation of the measuring device and the optional device.

[0017] According to claim 9 of the present invention, in the measuring system as defined in claim 1, an operating part for releasing a combination of the measuring device and the optional device is provided on the base side of the optional device. Therefore, it can be prevented that the operating part is operated when unexpected to release a combination of the measuring device and the optional device.

[0018] According to claim 10 of the present invention, in the measuring system as defined in claim 1, on the base side of the measuring device, there is provided a concave portion which is locked with a locking means on the optional device side when being combined with the optional device. Therefore, a combination of the measuring device and the optional device can be released by a simple operation.

[0019] According to claim 11 of the present invention, in the measuring system as defined in claim 1, the measuring device can be inserted into the optional device only from one direction of the measuring device when the measuring device and the optional device are combined with each other. Therefore, it can be prevented that the measuring device is wrongly inserted into the optional device, thereby preventing breakage of both devices.

[0020] According to claim 12 of the present invention, in the measuring system as defined in claim 1, the measuring device and the optional device are provided with mechanisms for preventing a wrong insertion of the measuring device into the optional device. Therefore, it can be prevented that the measuring device is wrongly inserted into the optional equipment, thereby preventing breakage of both devices.

[0021] According to claim 13 of the present invention, in the measuring system as defined in claim 1, a rib for regulating the distance to the measuring device is provided on the inner wall of the optional device. Therefore, it can be prevented that the measuring device is excessively inserted in the optional device, thereby preventing breakage of both devices.

[0022] According to claim 14 of the present invention, in the measuring system as defined in claim 1, the measuring device and the optional device are driven by a battery provided on the optional device side when the measuring device and the optional device are combined. Therefore, a battery on the measuring device side is not required when the measuring device and the optional device are combined.

[0023] According to claim 15 of the present invention, in the measuring system as defined in claim 14, the measuring device is combined with the optional device with its cover for a battery storage part and a battery removed. Therefore, the presence or absence of the battery of the measuring device can be detected when the measuring device and the optional device are combined, whereby it can be prevented that the battery is forgotten to be removed from the measuring device.

[0024] According to claim 16 of the present invention, in the measuring system as defined in claim 15, the cover for the battery storage part, which cover is provided in the measuring device, is shared as a cover for a battery storage part for storing a battery for the optional device. Therefore, it can be prevented that the cover for the battery storage part, which cover is removed from the measuring device, is lost when the measuring device and the optional device are combined.

[0025] According to claim 17 of the present invention, in the measuring system as defined in claim 15, the cover for the battery storage part of the measuring device is provided with a combining means for combining the cover with the measuring device and a combination releasing means for removing the cover for the battery storage part from the measuring device. Therefore, it can be prevented that the cover for the battery storage part is accidentally removed from the measuring device.

[0026] According to claim 18 of the present invention, in the measuring system as defined in claim 15, the optional device is provided with a storage part for the battery removed from the measuring device. Therefore, loss of the battery of the measuring device and an accident due to its scatter can be prevented.

[0027] According to claim 19 of the present invention, in the measuring system as defined in claim 16, a tip shape of a rib provided on the inner wall of the cover for the battery storage part has a flat part and a circular part for pressing plural kinds of accessories. Therefore, even when batteries of different shapes are used between the measuring device and the optional device, the batteries of respective shapes can be held reliably.

[0028] According to claim 20 of the present invention, in the measuring system as defined in claim 1, pattern lengths in a connector part for communication between the measuring device and the optional device provided in the measuring device are different in a sliding direction of the measuring device when the measuring device is combined with the optional device. Therefore, an electrode of the connector part can be connected in a desired order.

[0029] According to claim 21 of the present invention, in the measuring system as defined in claim 1, a terminal on the measuring device side for battery contact between the measuring device and the optional device is formed at a portion of a main printed board of the measuring device. Therefore, easier assembly can be realized due to reduction in parts count and assembly man-hour of the measuring device.

[0030] According to claim 22 of the present invention, in the measuring system as defined in claim 1, a terminal on the measuring device side for electrically connecting the measuring device to the optional device is provided in a battery storage part on the measuring device side. Therefore, it can be prevented that a user improperly touches a terminal part when only the measuring device is used.

[0031] According to claim 23 of the present invention, in the measuring system as defined in claim 1, when measurement is not started while the measuring device is on standby for measurement, the optional device promotes measurement start by voice or the like. Therefore, it can be prevented that a measurement operator interrupts the operation halfway through the measurement procedure.

[0032] According to claim 24 of the present invention, in the measuring system as defined in claim 1, the remaining time is informed by voice or the like by the optional device during measurement by the measuring device. Therefore, a measurement operator can be easily informed of the elapsed time of the operation.

[0033] According to claim 25 of the present invention, in the measuring system as defined in claim 1, cutoff of power is informed by voice or the like by the optional device when measurement by the measuring device is finished. Therefore, a measurement operator can be easily informed that power of the measuring device is cut off.

[0034] According to claim 26 of the present invention, in the measuring system as defined in claim 1, the initial setting of the measuring device such as clock setting can be performed by an operating part on the optional device side. Therefore, it is easy for an operator who needs the optional device to perform time setting of the measuring device.

[0035] According to claim 27 of the present invention, in the measuring system as defined in claim 1, when the initial setting of the measuring device such as clock setting is not performed when the optional device and the measuring device are connected, a need of the initial setting is informed by voice or the like by the optional device. Therefore, it can be avoided that an operator who needs the optional device improperly performs measurement without performing time setting.

BRIEF DESCRIPTION OF DRAWINGS

[0036]FIG. 1 is a perspective view of a measuring device and an optional device constituting a measuring system according to the present invention.

[0037]FIG. 2 is a perspective view of the measuring system according to the present invention.

[0038]FIG. 3 is a perspective view of the measuring device and the optional device constituting the measuring system according to the present invention, as seen from the base direction.

[0039]FIG. 4 is a sectional view of the optional device according to the present invention.

[0040]FIG. 5 is a sectional view of a battery storage part of the measuring device or the optional device according to the present invention.

[0041]FIG. 6 is a perspective view of a conventional measuring device.

[0042]FIG. 7 is a perspective view of the reverse face of the conventional measuring device.

[0043]FIG. 8 is an exploded perspective view of a biosensor.

[0044]FIG. 9 is a perspective view of a conventional measuring device provided with a voice output function.

BEST MODE TO EXECUTE THE INVENTION

[0045] Hereinafter, a measuring system according to the present invention will be specifically described based on figures.

[0046] FIGS. 1 to 3 illustrate the measuring system according to the present invention. In the figures, the same reference numerals as those shown in FIGS. 6 and 7 denote the same or corresponding parts.

[0047] As shown in FIG. 1, a measuring device 1 is provided with a function of enabling measurement by itself, and a biosensor 2 is inserted in a sensor insertion slot 3 and a prescribed operation is performed, thereby displaying information such as a measurement result on a display means 5. An optional device 22 can be combined with the measuring device 1, and can receive information such as a measurement result from the measuring device 1 or perform guidance of a measuring operation in a state of being combined with the measuring device 1 as shown in FIG. 2.

[0048] An opening 23 in which the measuring device 1 is inserted is provided in the front of the optional device 22, and the opening 23 has a slope part 24 which is formed so that the height H at the rear part is higher than the height h at the front part. An electronic circuit which generates a result obtained by communication with a communication part (both of them not shown) of the measuring device 1 or guidance of a measuring operation as a voice is provided inside the optional device 22, and the output is performed through a voice output part 21 on the top surface of the optional device 22. The top surface of the optional device 22 is shaped so that the display means 5 of the measuring device 1 can be seen even after integration, and an operating part 25 is provided on the side of the optional device 22.

[0049] A concave portion 26, a battery storage part 7, and a connector part 27 for making electrical contact with the optional device 22 are provided on the reverse face of the measuring device 1 as shown in FIG. 3.

[0050] Inside the measuring device 1, there are provided a measuring part comprising a converting means for converting an electrical resistance value of liquid to be examined, which liquid is obtained by the biosensor 2, to a characteristic value of the liquid to be examined, a storage means of the characteristic value, and a calculating means for performing various arithmetical operations such as an average value calculation based on a value stored in the storage means or the characteristic value obtained by measurement, a control means of the display means 5, a main printed board (not shown) provided with an electronic circuit such as a communicating means for communicating with the optional device 22, and an electrode part (not shown). The connector part 27 is formed at a portion of the main printed board unitedly, and a pattern 28 a for a ground connection is constructed to be longer than the other patterns.

[0051] A battery 33 is stored in a battery storage part 32 on the reverse face of the optional device 22. A change-over switch 43 for switching a language of a voice to be outputted is provided at a part which is covered with a back cover 30.

[0052]FIG. 4 is a sectional view of the optional device 22 as seen from the opening 23 side. Inside the optional device 22, a lock lever 36 is provided in a state of being held with a supporting point 36 a as a center, and a lock part 36 b is usually energized in the direction of D due to an action of a spring 37. A flat part 36 c is provided on the opposite side of the lock part 36 b with the supporting point 36 a therebetween to be located inside the concave portion 38 at the bottom of the optional device 22. A reception part 40 for receiving the connector part 27 of the measuring device 1 is provided in the inner part of the opening 23. A communicating means (not shown) for communicating with the measuring device 1 is provided inside the optional device 22, and communication is performed through the connector part 27 and the reception part 40. A distance regulation rib 45 for regulating the distance between the measuring device 1 and the reception part 40 side is provided on the internal top surface of the opening 23.

[0053] When the back cover 30 is attached to the measuring device 1, it is fixed to the measuring device 1 due to the action of a lock claw 30 a as shown in FIG. 5. While the battery 6 is pressed against the contact point 9 by a linear part 42 a of a rib 42 at this time, contact pressure between the contact point 9 and the battery 6 is appropriately kept by that the projection part 29 provided in the lower part of the contact point 9 makes contact with the contact point 9.

[0054] An operation of the measuring system having the above-described construction according to the present invention will be described.

[0055] When the measuring device 1 is integrated with the optional device 22, a flat part 30 b of the back cover 30 is pressed from an opening 31 of the measuring device 1 so that a lock is released, the back cover 30 and the battery 6 are removed from the measuring device 1, and the measuring device 1 is inserted from the opening 23 of the optional device 22. At this time, the measuring device 1 is led into the inside of the optional device 22 by a slope part 24 of the optional device 22. When the measuring device 1 is pushed further, a groove part 44 having the groove width W in the measuring device 1 and a guide rib 39 having the width W′ equal to the above-mentioned width W in the optional device 22 are combined, so that the connector part 27 of the measuring device 1 is led to the reception part 40 of the optional device 22, the pattern 28 a first makes contact with an electrode of the reception part 40 to establish a ground connection, and thereafter the rest patterns 28 are connected with the electrode.

[0056] After the connection between the connector part 27 and the reception part 40 is completed, a lock part 36 b of the lock lever 36 of the optional device 22 and the concave portion 26 on the base of the measuring device 1 are engaged with each other, thereby fixing the measuring device 1 to the optional device 22.

[0057] In a state where the measuring device 1 is locked in the optional device 22, the flat part 36C of the lock lever 36 is made not to protrude from the base of the optional device 22 in the concave portion 38 on the base of the optional device 22, so that the lock lever 36 is not released improperly.

[0058] The back cover 30 removed from the measuring device 1 is attached to the optional device 22 as a cover for the battery storage part 32 of the optional device 22, and at this time the battery 33 is held by a curved part 42 b of the rib 42 on the back cover 30. The battery 6 removed from the measuring device 1 is stored in a storage part 35 provided in the optional device 22 at the same time.

[0059] When being integrated, the measuring device 1 and the optional device 22 are driven by the battery 33 on the optional device 22 side.

[0060] In a state where the measuring device 1 and the optional device 22 are combined, the biosensor 2 is attached in the sensor insertion slot 3 of the measuring device 1 to measure a sample, and at this time voice guidance for a measuring operation or a measurement result is outputted by voice from the voice output part 21. When measurement is not started while the measuring device 1 is on standby for measurement, the optional device 22 promotes measurement start by voice or the like. The remaining time until a measurement result is outputted is notified by voice or the like from the voice output means 21 of the optional device 22 during measurement, whereby a measurement operator can be easily informed of the elapsed time of the operation, and cutoff of power is informed when measurement is finished, whereby the elapsed time since a start of the measurement or the like is also notified from the voice output part 21 of the optional device 22.

[0061] By operating the operating part 25 of the optional device 22, various setting operations such as volume setting of a voice to be outputted or setting of output repetition can be performed. Further, by operating the change-over switch 43, a language of a voice to be outputted can be switched.

[0062] The initial setting of the measuring device 1 such as clock setting can be performed arbitrarily by rotation and push operations of the operating part 25 on the optional device 22 side, thereby correctly storing an acquisition date of a measurement value of measurement data or the like, while, when the initial setting of the measuring device 1 such as clock setting is not performed when the optional device 22 and the measuring device 1 are connected with each other, a need of the initial setting is notified from the voice output means 21, thereby avoiding that an operator who needs the optional device 22 improperly performs measurement without performing time setting.

[0063] When an integration of the optional device 22 and the measuring device 1 is released, the flat part 36 c of the lock lever 36 in the optional device 22 is pressed, so that the lock lever 36 is rotated in the direction of an arrow E with the supporting point 36 a as a center, whereby the lock part 36 b and the concave portion 26 of the measuring device 1 are disengaged, and the measuring device 1 can be removed.

[0064] As described above, the measuring system according to the first embodiment of the present invention comprises a measuring device 1 which takes a substance to be measured and analyzes components of the substance to be measured and an optional device 22 which can generate voice or the like by being combined with the measuring device, and is able to announce a measuring procedure or a measurement result in the measuring device 1 by voice by the optional device 22, whereby even a weak-sighted person or those unfamiliar with handling of the device can measure accurately and recognize a measurement result.

[0065] The measuring device 1 and the optional device 22 having a voice function can be integrated and separated, whereby, even when plural users require the voice function, only the measuring device 1 which manages measurement data has to be held by each person, and the optional device 22 can be shared, resulting in reduction of user's burden. Further, when the voice output part 21 has a breakdown, only the optional device 22 has to be repaired and exchanged, and the measuring device 1 can be used continuously, thereby reducing inconvenience for a user.

[0066] The groove part 44 is provided in the measuring device 1, and the guide rib 39 is provided on the optional device 22 side, whereby, when a conventional measuring device or other models, for example, are to be combined with the optional device 22, the guide rib 39 serves as a stopper, and thus a wrong insertion of the measuring device 1 can be prevented.

[0067] When the back cover 30 is not removed from the measuring device 1 at the integration of the measuring device 1 and the optional device 22, the guide rib 39 abuts against the back cover 30, thereby preventing an irregular insertion of the measuring device 1. The same effect can be obtained also when the battery 6 is not removed from the measuring device 1, when the direction of the measuring device 1 is irregular, or when a measuring device which is not provided with the groove 44 is to be inserted.

[0068] The back cover 30 of the measuring device 1 is removed to be attached to the battery storage part 32 of the optional device 22 when the measuring device 1 and the optional device 22 are integrated, thereby preventing loss of the back cover 30. At this time, the battery 6 removed from the measuring device 1 is stored in the battery storage part 35 of the optional device 22, thereby preventing loss of the battery and an accident due to its scatter.

[0069] The flat part 30 b of the back cover 30 is pressed from the opening 31 of the measuring device 1 so that a lock is released when the back cover 30 is removed from the measuring device, whereby the back cover is not accidentally removed, resulting in prevention of an accident due to scatter of the battery.

[0070] The pattern for a ground connection is constructed to be longer than the other patterns in the connector part 27 of the measuring device 1, whereby, when the measuring device 1 and the optional device 22 are combined, the ground connection is initially established and connections of the rest of the patterns are completed thereafter, resulting in an electrically stable and reliable connection.

[0071] The connector part 27 is formed at a portion of a main substrate of the measuring device 1 unitedly, thereby realizing simplification of assembly processes due to reduction in parts count, assembly man-hour, and the like.

[0072] Applicability in Industry

[0073] As described above, according to a measuring system of the present invention, even when plural users require a voice function, only a measuring device which manages measurement data has to be held by each person, and an optional device can be shared, thereby reducing user's economical burden. Further, when a voice output part has a breakdown, only the optional device has to be repaired and exchanged, and the measuring device can be used continuously, thereby enhancing convenience for a user. 

1. A measuring system comprising a measuring device which takes a substance to be measured, analyzes components of the substance to be measured, and displays its measurement result and an optional device which has a voice output means for generating a voice or the like by being combined with the measuring device, wherein the optional device complementarily announces a measuring procedure or a measurement result in the measuring device by voice.
 2. The measuring system as defined in claim 1, wherein the measuring device has a means for establishing communication of information about measurement with the optional device.
 3. The measuring system as defined in claim 1, wherein the optional device has a means for establishing communication of information about measurement with the measuring device.
 4. The measuring system as defined in claim 1, wherein an operating part for operating the voice output means is arranged on the side of the optional device.
 5. The measuring system as defined in claim 1, wherein the optional device has a function for switching a language of a voice.
 6. The measuring system as defined in claim 1, wherein an operating lever for switching a language of a voice is arranged so as to be covered up with an exterior case of the optional device.
 7. The measuring system as defined in claim 1, wherein a slope with a tapered shape is provided in the neighborhood of an opening for the measuring device to be inserted, which is provided in the optional device, in the direction where the measuring device is inserted.
 8. The measuring system as defined in claim 1, wherein the measuring device and the optional device have mechanisms for being engaged with each other when being combined.
 9. The measuring system as defined in claim 1, wherein an operating part for releasing a combination of the measuring device and the optional device is provided on the base side of the optional device.
 10. The measuring system as defined in claim 1, wherein, on the base side of the measuring device, there is provided a concave portion which is locked with an locking means on the optional device side when being combined with the optional device.
 11. The measuring system as defined in claim 1, wherein the measuring device can be inserted into the optional device only from one direction of the measuring device when the measuring device and the optional device are combined with each other.
 12. The measuring system as defined in claim 1, wherein the measuring device and the optional device are provided with mechanisms for preventing a wrong insertion of the measuring device into the optional device.
 13. The measuring system as defined in claim 1, wherein a rib for regulating the distance to the measuring device is provided on the inner wall of the optional device.
 14. The measuring system as defined in claim 1, wherein the measuring device and the optional device are driven by a battery provided on the optional device side when the measuring device and the optional device are combined.
 15. The measuring system as defined in claim 14, wherein the measuring device is combined with the optional device with its cover for a battery storage part and a battery removed.
 16. The measuring system as defined in claim 15, wherein the cover for the battery storage part, which cover is provided in the measuring device, is shared as a cover for a battery storage part for storing a battery for the optional device.
 17. The measuring system as defined in claim 15, wherein the cover for the battery storage part of the measuring device is provided with a combining means for combining the cover with the measuring device and a combination releasing means for removing the cover for the battery storage part from the measuring device.
 18. The measuring system as defined in claim 15, wherein the optional device is provided with a storage part for the battery removed from the measuring device.
 19. The measuring system as defined in claim 16, wherein a tip shape of a rib provided on the inner wall of the cover for the battery storage part has a flat part and a circular part for pressing plural kinds of accessories.
 20. The measuring system as defined in claim 1, wherein pattern lengths in a connector part for communication between the measuring device and the optional device provided in the measuring device are different in a sliding direction of the measuring device when the measuring device is combined with the optional device.
 21. The measuring system as defined in claim 1, wherein a terminal on the measuring device side for battery contact between the measuring device and the optional device is formed at a portion of a main printed board of the measuring device.
 22. The measuring system as defined in claim 1, wherein a terminal on the measuring device side for electrically connecting the measuring device to the optional device is provided in a battery storage part on the measuring device side.
 23. The measuring system as defined in claim 1, wherein, when measurement is not started while the measuring device is on standby for measurement, the optional device promotes measurement start by voice or the like.
 24. The measuring system as defined in claim 1, wherein the remaining time is informed by voice or the like by the optional device during measurement by the measuring device.
 25. The measuring system as defined in claim 1, wherein cutoff of power is informed by voice or the like by the optional device when measurement by the measuring device is finished.
 26. The measuring system as defined in claim 1, wherein the initial setting of the measuring device such as clock setting can be performed by an operating part on the optional device side.
 27. The measuring system as defined in claim 1, wherein, when the initial setting of the measuring device such as clock setting is not performed when the optional device and the measuring device are connected, a need of the initial setting is informed by voice or the like by the optional device. 